Portable Temperature Calibrators CL550 Series
Discontinued

CL551

Portable Temperature Calibrators Discontinued

PLACE ORDER

NIST Traceable Standard
Compact, Rugged and Easy To Use Multihole Dry Block Calibrators
UBuilt-In Reference Pt100 with 0.01°C Resolution Indicator (CL550 & CL551)
Temperature Sensors for Field and Laboratory Inspection and Calibration
Microprocessor Temperature Controller
Auxiliary Inputs for External Pt100 and Thermostat Switch-Test
Internal Fan for Rapid Cool-Down
Ranges:
•CL550: from -20 to 125°C
•CL551: from T amb to 550°C
•CL552: from 200 to 1100°C
Optional Windows 95 Calibration Procedure Manager Package for PC to Document Sensor Certification Activity

Description

This series is no longer available. Please review the CL355A , or the CL750A as potential substitutes, or contact our Pressure Engineering Department.

General features
Controlling temperature parameters is the most important factor in assuring the quality, operational safety and reliability of industrial processes. Thermocouples, resistance thermometers and other temperature sensors, when installed in industrial processes, are subjected to mechanical, thermal and chemical stresses which accelerate their aging and eventual breakdown. Therefore, it is a recommended procedure to inspect, check and calibrate each sensor during the commissioning phase and at regularly scheduled intervals.

The CL550, CL551 and CL552 series temperature calibrators are transportable units designed to provide a controlled temperature with high stability and high uniformity in all calibrator ranges. All units in this series come equipped with a permanent six hole block. Please see specifications for further details.

Internal Metal Block Temperature Stability
A built in microprocessor-based controller handles the man-machine interface, the internal logic, and assures the high stability of the internal metal block through a sophisticated temperature algorithm.

External Digital Indicator
When better accuracy is required, the CL550 or CL551 temperature calibrator can be combined with an external high accuracy indicator (such as a CL526) and a Working Standard Thermometer.

Software and Digital Interface (Optional)
The CL550, CL551 and CL552 series temperature calibrators are equipped with a full bi-directional RS-232 digital interface for communication with personal computers. The temperature calibrator can be part of an automatic calibration system with a programmable cycle and the acquisition of data required to generate a full Calibration Report. OMEGA™ engineers are ready to support you with the system and software to fulfill your application requirements.

A Complete Automatic Calibration System
The CL550 and CL551 series can be used together with a Personal Computer, a multifunction high precision calibrator (such as the CL520 series) and a Calpman Windows software package to improve a true automatic temperature calibration system. Using the RS-232 interfaces of the instruments, it is possible to program through the PC the complete test procedure for your thermocouple or resistance thermometer to be certificated. The CL520 series calibrators are able to read the testing thermo-element with the desired accuracy, and the software calculates the errors and prepares the certificate.

Specifications	CL550	CL551	CL552
Range	-20 to 125°C (-4 to 257°F)¹	T amb to 550°C (1022°F)	200 to 1100°C (392 to 2012°
Stability	±0.03°C	±0.05°C @ 450°C	±0.3°C at 1000°C
Reading Accuracy	±0.15°C @ 100°C	±0.3°C @ 450°C	±(0.2% fs + 1 digit)
Uniformity: Radial	±0.1°C @ 100°C	±0.2°C @450°C	±0.2°C @ 800 °C
Axial	±0.2°C @ 80 mm	±0.8°C @ 80 mm	±0.3°C @ 100 mm
Heating Rate	15°C/minute	20°C/minute	17°C/minute
Cooling Rate	12°C/minute	10-25°C/minute	6°C/minute
Stabilizing Time	6 min.	10 min.	20 min
Standard Block Immersion Depth No. of Holes	Aluminum 5.3" 6	Aluminum 7.3" 6	Inconel 600 7.3" 6
Diameter(s)	1/8", 3/16", 1/4", 5/16", 3/8", 3/4"	1/8", 3/16", 1/4", 5/16", 3/8", 3/4"	1/8", 3/16", 1/4", 5/16", 3/8", 3/4"
Regulating System	PID microprocessor	PID microprocessor	PID microprocessor
Reference Sensor	Pt100 - Class A	Pt100 - Class A	Thermocouple type N
Auxiliary Input	3 wires Pt100	3 wires Pt100
Display	2 lines of 20 characters on backlighted LCD	2 lines of 20 characters on backlighted LCD	LED display 2 lines of 4 digits
Display Resolution	0.1 and 0.01°C	0.1 and 0.01°C	1°C
Digital Interface	RS-232	RS-232	RS-232
Power Supply	110 V optional 220 V	110 V optional 220 V	110 V optional 220 V
Power	300 VA	800 VA	1200 VA
Chassis	Separate shells for thermal & electronic sections with a carrying handle	Separate shells for thermal & electronic sections with a carrying handle	Separate shells for thermal & electronic sections with a carrying handle
Dimensions	140 x 370 x 300 mm (5.5 x 14.6 x 11.8")	140 x 370 x 300 mm (5.5 x 14.6 x 11.8")	200 x 330 x 420 mm (7.9 x 13.0 x 16.5")
Weight: net gross	10 kg (22 lb) 17 kg (37.4 lb)	10 kg (22 lb) 17 kg (37.4 lb)	12 kg (26.4 lb) 17 kg (37.4 lb)
Standard Accessories	Insert extractor, Fuse kit Thermostat leads kit, Electric power cable, Insert reducing block with Ø 4.5-6.5-9.5 mm holes	Insert extractor, Fuse kit, Thermostat leads kit, Electric power cable	Insert extractor, Fuse kit, Electric power cable, Insert reducing block with Ø 7-9-11-13.5 x 175 mm holes

1 Measure referred at 18°C ambient temperature
2 The relative accuracies and stability shown are referred at 20°C ±3°C ambient temperature

Place Order(Specify Model Number)

Part Number/ Desc.

Qty

Description

CL551

Consult Sales

Availability:

Portable block calibrator 1022°F with a permanent multi-hole insert (1/8", 3/16", 1/4", 5/16", 3/8", 3/4" dia x 7.3" long insert)

CL5-CASE

Consult Sales

Availability:

Aluminum carrying case

† All amounts shown in AUD
Note: Each unit comes complete with: operator’s manual, power cord, fuse and calibration certificate (NIST traceable). Add "-220V" to model number for 220 Volt power. No additional charge.

Portable Temperature Calibrators CL550 Series Discontinued

CL551

Portable Temperature Calibrators CL550 Series
Discontinued